4.1.9: Development and use of drugs Flashcards
1
Q
What were the origins of morphine?
A
- In the use of sap from unripe poppy seed-heads as long ago as the Neolithic times.
- 12th century, opium from poppies used as an anaesthetic.
- 19th century, morphine and opium were being used. H
2
Q
How do opiate drugs work?
A
- They reduce nervous action in the central nervous system.
- If nerves cannot carry impulses, pain is not felt.
3
Q
What led to the development of aspirin and ibuprofen?
A
- Medicinal willow bark extract used to relieve pain and fever in history.
- Discovery of active ingredient, a way was found to reduce side-effects by adding an acetyl group.
4
Q
Why do monkeys rub citrus oils on their coats?
A
-As insecticides. and antiseptics in order to prevent insect bites and infection.
5
Q
Why do birds line their nests with medicinal leaves?
A
-To protect their chicks from blood-sucking mites.
